diff --git a/src/components/schemas/pss/NumberOfTransactionsPerStatus.yaml b/src/components/schemas/pss/NumberOfTransactionsPerStatus.yaml
new file mode 100644
index 0000000..e603677
--- /dev/null
+++ b/src/components/schemas/pss/NumberOfTransactionsPerStatus.yaml
@@ -0,0 +1,33 @@
+title: Number of Transactions per Status
+description: |
+  A breakdown of how many of the underlying transactions were assigned a given status. Corresponds to the attribute
+  _NbOfTxsPerSts_ in SPS/ISO-20022.
+type: object
+required:
+  - statusCode
+  - numberOfTransactions
+properties:
+  statusCode:
+    type: string
+    description: |
+      The transaction status this count refers to. Corresponds to the attribute _NbOfTxsPerSts ⇾ DtldSts_ in SPS/ISO-20022.
+      Possible status values are:
+      - ACCC (accepted settlement completed, credit to the creditor account)
+      - ACCP (accepted)
+      - ACSC (accepted settlement completed, debit to the debtor account)
+      - ACWC (accepted with change)
+      - RJCT (rejected)
+    enum:
+      - ACCC
+      - ACCP
+      - ACSC
+      - ACWC
+      - RJCT
+    example: ACSC
+  numberOfTransactions:
+    type: integer
+    minimum: 0
+    description: |
+      The number of transactions that were assigned the given status. Corresponds to the attribute
+      _NbOfTxsPerSts ⇾ DtldNbOfTxs_ in SPS/ISO-20022.
+    example: 3
diff --git a/src/components/schemas/pss/PaymentSubmissionStatus.yaml b/src/components/schemas/pss/PaymentSubmissionStatus.yaml
index b64da03..7a1c935 100644
--- a/src/components/schemas/pss/PaymentSubmissionStatus.yaml
+++ b/src/components/schemas/pss/PaymentSubmissionStatus.yaml
@@ -33,6 +33,13 @@ properties:
   messageId:
     description: The unique identifier of the payment instruction message.
     $ref: ./MessageId.yaml
+  numberOfTransactionsPerStatus:
+    type: array
+    description: |
+      An optional breakdown of the number of transactions per status, if provided by the financial institution.
+      Corresponds to the attribute _NbOfTxsPerSts_ in SPS/ISO-20022.
+    items:
+      $ref: ./NumberOfTransactionsPerStatus.yaml
   transactions:
     type: array
     description: The payment transaction items.
diff --git a/src/components/schemas/pss/StandingOrderSubmissionStatus.yaml b/src/components/schemas/pss/StandingOrderSubmissionStatus.yaml
index eb49db7..c91e901 100644
--- a/src/components/schemas/pss/StandingOrderSubmissionStatus.yaml
+++ b/src/components/schemas/pss/StandingOrderSubmissionStatus.yaml
@@ -19,6 +19,13 @@ properties:
   messageId:
     # description: The unique identifier of the the standing order instruction message.
     $ref: ./MessageId.yaml
+  numberOfTransactionsPerStatus:
+    type: array
+    description: |
+      An optional breakdown of the number of transactions per status, if provided by the financial institution.
+      Corresponds to the attribute _NbOfTxsPerSts_ in SPS/ISO-20022.
+    items:
+      $ref: ./NumberOfTransactionsPerStatus.yaml
   transactions:
     type: array
     description: The standing order transaction items.